Ice-scraper.



PBLTENTED MAY 12, 1903;

F. COREY. 10 SGRAPER. H APPLICATION FILED SEPT. 13, 190% HO MODEL.

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UNTTED STATES rammed May 12, its.

PATENT OFFICE.

FRED B. COREY, OF'SCHENECTADY, NEW YORK, ASSIGNOR TOGENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

lCE-SCRAPER.

SPECIFICATION f rming part of Letters Patent No. 727,593, dated May 12, 1903.

Application filed September 13, 1902. Serial No. 123,250. (No model.)

To ctZZ whom it may concern:

Be it known that I, FRED B. COREY, a citizen of the United States, residing at Schenectady, in the county of Schenectady, State of New York, have invented certain new and useful Improvements in Ice-Scrapers,of which the following is a specification.

My invention relates to improved means for removing the ice from such rails as the conductor-rails of the so-called third-rail system of electric railways.

The object of my invention is the production of a device for removing ice or sleet which forms on the top of the conductor-rail which is simple and eificient and which can be easily and cheaply replaced'when worn.

The points of novelty whichI think my in vention possesses I have pointed out with particularity in the accompanying claims.

In the following description and accompanying drawings I have illustrated embodiments of my invention.

Figure I of the drawings is an elevation, partly in section, showing one embodiment of my invention. Fig. 2 is a plan view showingpart of the structure shown in Fig. 1. Fig. 3 shows a somewhat-different embodiment of my invention. Figs. 4. and 5 are sectional views showing differently-constructed cutting-wheels.

In Fig. 1 the conductor-rail of a third-rail system is shown mounted on suitable insulating-supports 2. A guard-rail 3, supported by a. suitable bracket 4, is shown overlying the conductor-rai1. The ice-cutting wheel 5 is mounted in a bracket or supporting-arm 6, which may be made out of resilient material and which depends from the body of the vehicle 7. The ice-cutting wheel 5 is provided with a series of cutting edges 8 and may be formed out of a solid piece, as shown in Fig. 4, with the cutting edges formed in the shape of circumferential ridges or ribs upon its periphery, or it may be formed as shown in Fig. 5, where a plurality of large dished disks 9, of sheet metal, form the cut-ting members and are separated by disks or spacing members 10. In either event the disk is set with its axis oblique to the conductor-rail and to the direction of travel, as best shown in Fig. 2, so that the action in breaking and removing the ice is a combined sliding and rotating one.

In the construction shown in Fig. 3 the cutting-disk is carried in an upright yoke 6, which is mounted in a member 7, carried by the vehicle. In this construction I have shown a spiral spring 12 for maintaining the disk against the rail with a suitable pressure, the yoke 6 being slidingly but non-rotatably mounted in the member 7. With either construction the ice-scraper mechanism should be so connected to the car as to be readily removed. In the construction shown in Fig. 3 the member 7 may be hinged to the body of the car, so that when the ice-scraper is not needed it may be swung into an inoperative position.

The construction shown in Fig. 1 has certain advantages in that it can be used on a system where the conductor-rail is covered by a guard-rail, and while it is true that where the conductor iscovered by such a guard-rail there will be little, if any, necessity for the use of such a scraperin practice it may frequently happen that a car on the same run will encounter both the covered and the uncovered construction of conductor-rail.

The construction of the scraper shown in Fig. 5 is especially advantageous in that when the cutting-surfaces are worn away the cutter may be taken apart and the cutting-disks 9 can be removed and replaced by new cutting-disks without scraping the rest of the wheel.

The cutting-wheels in general should be so proportioned as to contact substantially. all the face of the rail. If desired, the outer disks may be made somewhat larger'than the inner ones, as shown in Figs. 1 and 2, so'as to contact with the upper face of the conductorrail when curved.

By the construction shown an ice-scraper is secured which is simple and reliable and of which the parts subjected to wear are readily replaceable. By setting the cutting-disks askew the combined effect of a rotating and sliding action is obtained without the use of gearing. This action is very desirable in breaking and removing the ice from the rail. While I have shown and described the best forms of my invention which are now known to me, I do not intend to be limited to the exact details of construction herein shown and described. I

It is easily seen that my scraper could be used on other than currentcarrying rails.

What I claim as new, and desire to secure by Letters Patent of the United States, is 1. In combination, a rail and an ice-remover therefor, comprising a substantially cylindrical cutter -body having circumferential cutting edges held in contact therewith 

